PCV and "lambda o2 sensor"?
 

Hi there,

I was using my PCV over a year now and I'm very happy with it. I bought it for my DNA stage 2 mod and the OTR 2in1 aftermarket can. On the PCV I loaded also the map from OTR for this very setup.

Today I was going through the OTR shop again and have seen a lambda O2 sensor eliminator. I wrote to OTR and asked Throsten if this is necessary for my setup as well and he tould me that it is, otherwise the PCV is not doing its job properly.

What is your opinion? Do I really have to eliminate the O2 sensor? And if so, where can I find it?

Thank you so much for your time and help.

Cheers!
Mike

Can you point me to a link on which O2 eliminator you are talking about?

If you are talking about the old type O2 eliminators, they don't work on any XT660 the A/F ratio is to unstable, the Dynojet O2 emulator & my 2010 O2 eliminator are the only 2 know O2 eliminators that work on all XT660's.

The XTZ has shown it can run well with a PCV/PCIII/Kev fuel mod with the O2 sensor connected, my O2 eliminator has been proven to show a better stable A/F ratio compared to not having it fitted with these types of fuel mods.

http://www.off-the-road.de/XT-660/XT...liminator.html

I have no idea if that's the new or the old type. What is A/F ratio? Air/Fuel ratio?

Thanks!

Old type, it does not work on any XT660's, this was proven back in 2009.

Ok, thank you for the clarification. Where can I get your 2010 O2 eliminator for my Ten? Would you recommend it to me?

PM sent.

I'm interesting too.
I take a look at Dyno website: for xt660x/r they say to use their O2 eliminatore, while for xt660z they say to use PCV with O2 sensor connected.

Do you think there are really advantage with your O2 eliminator? How work my PCV with O2 sensor connected?

Thank's

From data logging the XTZ A/F ratio the Z has a more stable A/F ratio with the O2 senor connected but it will run leaner in the closed loop circuit & give better fuel economy.

If you want HP & Torque all the time a O2 Eliminator has the best results.

http://www.4shared.com/file/v6dT1ssH/XT660Z_3000_to_4000_rpm_Range.html

I understand, I had the same intuition. But closed loop circuit work only between 3000 and 4000 rpm?
Only one question: if with O2 eliminator is possible to use PCV between 3000/4000 rpm, why Dyno website don't suggest their eliminator?
Can you ship your eliminator in Italy? How much it cost?
Thank's for all your support

The closed loop circuit actually runs between 2500 to 4500 rpm, right in the range that most of us ride all the time.

The X/R closed loop circuits have different parameters to the Z, with the X/R's closed loop circuit being more aggressive, so they have to run different settings in the Dyno Jet emulator so they advise disconnecting the O2 sensor until such time as they finish building the XTZ's emulator, with my mod it does not emulate the O2 signal it turns it off completely.

My O2 XTZ eliminator will be released very soon, I am just finalizing the installation notes & will announce them for sale in a week or 2.

The cost of my O2 Eliminator will be $75.00 including postage world wide, payment via Paypal.

I think I'll wait for yours..when it became ready!
Please, if you can PM to me when ready to ship ;-)

Thank's for all

Will do.

Maybe I've found a AutoTune module AT200 at a good price.
Do you think it's a good idea?
Do you think that can be work without any 02 eliminator?

Stewie82;162823]Maybe I've found a AutoTune module AT200 at a good price. They work well if you are playing with the A/F ratio a lot, a dyno tune will produce the best HP & Torque. How much is cheap?
Do you think it's a good idea? How good are you at building fuel maps?
Do you think that can be work without any 02 eliminator? They can't build a stable fuel map between 2500 to 5000 rpm without a O2 eliminator/emulator, I know we have treid many times over the past 4 years.

Hi Kev, I also have spoken to you about the o2 sensor before as i have the plug in type which you have said does not work. So i have a 2008 xtx and you also said i can use a PCV from a raptor 700 on my bike. Am i correct? So i also will need one of your O2 eliminators if this is the right set up.
thanks Chris

[quote=cjlowndes;163083]Hi Kev, I also have spoken to you about the o2 sensor before as i have the plug in type which you have said does not work. So i have a 2008 xtx and you also said i can use a PCV from a raptor 700 on my bike. Am i correct? Yes, it will work So i also will need one of your O2 eliminators if this is the right set up. Yes you will, I have plenty stock for the XTX & XTR's ready to ship next business day.

Hi,
I recently bought a PCV for the Ten and it came with the O2 eliminator. I guessed that was why it costs �30 more than a standard PCV. And works a treat.

Rob

Rob you are quite right about the Zd, we have similar scenario with the Dyno jet O2 optimizer for the X & R models. The Dyno jet Optimizer keeps the R & X A/F in the closed loop at 13.6:1 & my O2 eliminator turns it off completely, only allowing the ECU to read the open loop circuit.

Rob from what we have tested we can now get a better stabilized A/F ratio with the closed loop completely turned off then with the plug in O2 eliminator, with the closed loop circuit turned off it forces the ECU to read the open loop circuit all the time which is the circuit the PCV adjusts. A PCV can not adjust the closed loop circuit.

You can still use the plug in type on the Z but when the ECU reads the closed loop circuit with the plug in type it sets a fix A/F ratio of around 14.2:1, we want the A/F ratio around 13.2:1 all the time for best power.

With my O2 eliminator it turns off the closed loop circuit & will stop the Zd's ECU from leaning the Power Commander out to 14.2:1 in the closed loop when you are on the cruise & keeps the A/F ratio to where it is set in the PCV.

The plug in type O2 elminiator does not work on the X & R 2007 to present models.

Hi Kev,

you know by now that i know nothing about how these loops work, i just take expert advise. But here is a thought: My bike is DNA stage 2 as you know and i am using the DNA stage 2 mapping that is here on the forum. This map was written with the o2 on, i assume as it has been around a while. Will it be ok with your eliminator?

Rob

P.S.
Has anybody lately read the thread about the effectiveness of Kev mods on the German XT660 web site? If there are any members here who are also members on that forum please refer them to Kevs answers to all the questions posted here. From what i saw there will be some very sorry XT owners over there soon. (refering to the abilities of the o2 sensor here)

I have custom made fuel maps for the XTX/R with O2 my eliminator made in the UK on a Dyno, these would be close to your setup on your Z.

The map you have loaded would also be close using my O2 eliminator. The XTZ does not have an agressive closed loop circuit like the X & R models, with most of them running fine with a fuelling device & the O2 sensor connected.

Hi Kev,
some good news for your O2 eliminator for XT660Z. I ride with PCV mounted and I think it work fine, but not at 100%
When I ride for a long time under 4000rpm, I think A/F ratio became more lean.
If you tell me that with your O2 eliminator, PCV adjust A/F ratio for all rpm range, I'll buy it!

Thank's for your support :)

The XTZ's closed loop circuit is not as agressive as the XTR/X, it will help on your Z.

I know longer make the O2 eliminators.

You have two choices make your own Kev O2 eliminator or but an O2 Optimizer from Dyno jet for a XTR & fit it to your XTZ.

"make your own Kev O2 eliminator"

what do you mean? do you have some istruction to make it?

I sure do in my latest edition of my mod book.

In your book's index I can't find it, can you give me a link to buy your book (that include this mod)? Download it's good ;-)

The book has over 700 pages now.

http://www.xt660.com/site/node/325

I see Off The Road now list the PCV with O2 Optimizer.

http://www.off-the-road.de/Power-Commander-XT660R-X-O2-Optimizer.html

http://www.powercommander.com/downloads/22-020/install/pcv/eng22-020.pdf

http://www.carpimoto.it/EN/Engine/34411_Power-Commander-V-for-Yamaha-XT-660-R-X-09-european-only-O2-Optimizer-included.htm

The difference between my O2 eliminator & Dyno jets, my O2 eliminator allows you to tune the mapping to any A/F ratio in the closed & open loop circuits. Dynojet's O2 Optimizer allows you to tune the open loop to any A/F ratio but fixes the closed loop to 13.6:1.

With my O2 eliminator you can remove the O2 sensor if you want, with Dynojet's O2 Optimizer the O2 sensor still has to be installed for the O2 Optimizer to work.

What should I buy Kev?
 

Hi Kev,

Mate, I've ordered an Akro 2-1 system with headers with no Lambda sensor. I'm also awaiting stage II DNA filterbox cover & filter. With the exhaust, I've also ordered an OTR (kawasaki??) O2 eliminator which I assume was a waste of money.

I gather from what I've read that I'll need a PCV and your fuel mod to get this set up to work properly?

To build a Kev Mod I'd need to follow the instructions in your Mod Bible? Wonder if you'd be interested in making up a batch for some of us if the price was right??

Cheers, boneman

The problem is I made 50 of these O2 mods over the last year & had to sell them at my cost price to get my money back, as know one want the mod.

I had to order 1.5m lenghths of the nickle copper tubing & a 100 temp sensors at a time. To make one off's is not worth it for me as I would have quite a few left overs.

I have just sent an Email to Kev2 to find out if he has any left over tubing, I will get back to you.

Thanks Kev, I understand
 

That's no worries Kev, I wouldn't expect you to incur a cost to help us out. The fact that you offer so much advise for free on this site is legendary. We all appreciate it!

I wonder if I should send the original headers back in exchange for ones with a mount for the lambda sensor or get someone to weld in a lambda sensor mount so that I can use a Dynajet O2 optimizer as an alternate set up to one of your fuel mods?
What do you think?
Thanks again, Jason

Get the O2 lug welded into the new header, any exhaust shop will do the job for you.

Dynojet no longer sell the O2 Optimizers separately, they only come with PCV's now, I did find a supplier in Germany that sold me 2 X O2 Optimizers recently for my mates 2011 Z1000's, he seems to be the only one in the world that sells the Optimizer separately

May be send him an Email to see if he will supply your a o2 Optimizer for your XT

http://www.ebay.com.au/itm/250950245204

http://stores.ebay.com.au/Auspufftuning-de-Motorradzubehor/_i.html?_kw=O2&_kw=Optimizer&_sid=905983070

Cheers Kev.
 

Thanks for your advice Kev.

Have arranged to have a nut welded onto the headers by one of the local performance shops to receive the sensor thread. This will actually work out cheaper than ordering one with the mount in place from the supplier??

The new plan is PCV, O2 optimizer, 2 position MAP switch, all from Dynojet.

Apparently you can get an O2 optimizer if you can quote a valid serial number from a PowerCommander??

No doubt I'll be asking for your advice again when it comes to programming the fuel maps!!

Thanks a million, your help & advice has been invaluable!

Jason

That is your best option PCV + O2 optimizer for your set up, if you were going big bore or out for performance my O2 eliminator works best.

Dyno jet Australia would not sell me any O2 Optimizers for the two Z1000's, I provided them the serial numbers & they said no & this was only 2 months ago.